Which preschool math competencies are most important for later math achievement? A new study in Early Childhood Research Quarterly attempts to answer this question for low-income and minority children.

• Counting and cardinality - basic counting (rote counting, number recognition, one-to-one correspondence) and advanced counting (cardinality, counting forward and back)
• Patterning - extend and duplicate patterns
• Geometry - identify, compare, and compose shapes
• Measurement and data - recognize shapes and identify their attributes by measurement

All the domains were significantly predictive of later achievement, suggesting that children rely on multiple domains of early knowledge when developing later skills. However, counting and numeracy skills, particularly advanced counting skills, were most predictive of later achievement. Early numeracy was predictive of later mathematics achievement while also controlling measurement and data, geometry, and patterning. This suggests that, at least for this group of children, early numeracy was the most predictive of later mathematics ability.

Johns Hopkins University 

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